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The polluting strength sewage is usually...

The polluting strength sewage is usually characterized by its:

A

BOD

B

nitrogen content

C

ozone content

D

eutrophication

Text Solution

Verified by Experts

The correct Answer is:
A
There will be more microbial activity in the sewage if more dead organic matter is present. More microbial activity will require more oxygen which, we call technically as biological oxygen demand. So the pollution strength of any sewage can be determined by its Biological Oxygen Demand (BOD).
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ARIHANT NEET-ENVIRONMENTAL ISSUES-Chapter exercises ( C) Medical entrances gallery (Collection of Questions Asked in NEET & in Various Medical Entrance Exams)
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